This alert expired on 4 September 2026 at 07:45 UTC. It is kept here as a record.
It is the 9th strongest of the 14 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Special Marine Warning issued September 4 at 3:00AM EDT until September 4 at 3:45AM EDT by NWS Wakefield VA
An estimated 32,899 people live within 50 km of this point.
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 28 out of 100, at 87 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 87% |
| Coordinates | 38.0914, -75.2044 |
| Nearest City | Salisbury (46 km) |
| Population Exposed | 32.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-04T07:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.047b3287b5db65689d7a062e80fd9118a5786978.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Chesapeake Bay from Smith Point to Windmill Point VA; Chesapeake Bay from Windmill Point to New Point Comfort VA; Chesapeake Bay from New Point Comfort to Little Creek VA; Rappahannock River from Urbanna to Windmill Point; Coastal waters from Fenwick Island DE to Chincoteague VA out 20 NM; Coastal waters from Chincoteague to Parramore Island VA out 20 NM; Coastal waters from Parramore Island to Cape Charles Light VA out 20 NM; Waters from Fenwick Island DE to Chintoteague VA from 20 to 60 NM; Waters from Chincoteague VA to Parramore Island VA from 20 to 60 NM; Waters from Parramore Island VA to Cape Charles Light VA from 20 to 60 NM; Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM; Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM; Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM; Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM; Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM; Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM |
| Headline | Special Marine Warning issued September 4 at 3:00AM EDT until September 4 at 3:45AM EDT by NWS Wakefield VA |
| Expires | 2026-09-04T03:45:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.047b3287b5db65689d7a062e80fd9118a5786978.001.1","noaa_urn:oid:2.49.0.1.840.0.76eaa6b1dadae3ef02a7f097f440107dd0e740c6.001.1","noaa_urn:oid:2.49.0.1.840.0.2788dbd87ec43f87618dc47d7d4dad2077f13c18.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 63 |
| Spc Location | 1 SW Indian Beach |
| Spc County | ANZ455 |
| Spc State | DE |
| Spc Comments | Dewey Beach Mesonet. (PHI) |
| MergedSources | [{"id":"spc_wind_38.69_-75.36_270","source":"spc","severity":"medium","severityValue":45,"timestamp":1788499860000,"latitude":38.69,"longitude":-75.36},{"id":"spc_wind_38.56_-75.18_271","source":"spc","severity":"medium","severityValue":45,"timestamp":1788500880000,"latitude":38.56,"longitude":-75.18},{"id":"spc_wind_38.67_-75.07_272","source":"spc","severity":"medium","severityValue":45,"timestamp":1788501120000,"latitude":38.67,"longitude":-75.07},{"id":"spc_wind_38.68_-75.09_273","source":"spc","severity":"medium","severityValue":45,"timestamp":1788501180000,"latitude":38.68,"longitude":-75.09}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.